java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:22:43,313 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:22:43,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:22:43,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:22:43,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:22:43,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:22:43,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:22:43,338 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:22:43,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:22:43,349 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:22:43,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:22:43,350 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:22:43,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:22:43,354 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:22:43,355 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:22:43,356 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:22:43,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:22:43,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:22:43,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:22:43,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:22:43,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:22:43,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:22:43,378 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:22:43,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:22:43,379 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:22:43,381 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:22:43,382 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:22:43,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:22:43,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:22:43,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:22:43,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:22:43,390 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:22:43,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:22:43,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:22:43,392 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:22:43,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:22:43,393 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-09-30 21:22:43,417 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:22:43,417 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:22:43,418 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:22:43,418 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:22:43,419 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:22:43,419 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:22:43,419 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:22:43,419 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:22:43,420 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:22:43,420 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:22:43,420 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:22:43,420 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:22:43,420 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:22:43,421 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:22:43,421 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:22:43,421 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:22:43,421 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:22:43,421 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:22:43,422 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:22:43,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:22:43,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:22:43,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:22:43,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:22:43,423 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:22:43,423 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:22:43,423 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:22:43,423 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:22:43,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:22:43,424 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:22:43,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:22:43,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:22:43,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:22:43,516 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:22:43,517 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:22:43,518 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-09-30 21:22:43,519 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-09-30 21:22:43,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:22:43,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:22:43,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:22:43,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:22:43,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:22:43,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,615 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 21:22:43,615 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 21:22:43,615 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 21:22:43,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:22:43,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:22:43,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:22:43,619 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:22:43,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... [2018-09-30 21:22:43,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:22:43,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:22:43,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:22:43,641 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:22:43,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:22:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:22:43,716 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 21:22:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 21:22:43,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 21:22:44,058 INFO L345 CfgBuilder]: Using library mode [2018-09-30 21:22:44,058 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:22:44 BoogieIcfgContainer [2018-09-30 21:22:44,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:22:44,059 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:22:44,059 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:22:44,068 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:22:44,068 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:22:44" (1/1) ... [2018-09-30 21:22:44,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 21:22:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-30 21:22:44,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-30 21:22:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:22:44,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-30 21:22:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-30 21:22:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 21:22:44,436 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-09-30 21:22:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-09-30 21:22:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:22:44,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:45,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-30 21:22:45,014 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-30 21:22:45,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 21:22:45,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-30 21:22:45,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-30 21:22:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:22:45,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:45,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-09-30 21:22:45,581 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-09-30 21:22:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 21:22:45,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:46,254 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-09-30 21:22:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:46,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-09-30 21:22:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-09-30 21:22:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:22:46,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-09-30 21:22:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-09-30 21:22:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 21:22:47,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:48,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-30 21:22:48,009 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-30 21:22:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:22:48,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-09-30 21:22:49,314 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-09-30 21:22:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 21:22:49,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-09-30 21:22:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-09-30 21:22:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:22:51,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:22:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:22:55,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:22:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-09-30 21:22:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-09-30 21:22:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 21:22:55,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:22:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:23:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:23:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:23:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-09-30 21:23:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-09-30 21:23:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:23:06,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:23:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:23:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:23:46,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:23:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-09-30 21:23:46,309 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-09-30 21:23:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 21:23:46,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:23:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown